Can guard



FIG. 1 is a front perspective view of a can guard shown in a position of use on an unclaimed can drawn in broken line;

FIG. 2 is a another front perspective view thereof, showing an upper portion of an unclaimed can drawn in broken line;

FIG. 3 is a top plan view thereof;

FIG. 4 is an elevational side view, all sides being identical thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines in the drawings represent unclaimed environmental subject matter and form no part of the claim. 

CLAIM The ornamental design for a can guard, as shown and described. 